Non-silicone magnesium alloy pressure casting mould release agent

A release agent and magnesium alloy technology, applied in the field of magnesium alloy die-casting, can solve the problems of difficult transportation and management, high product cost, and affecting the surface treatment of parts, so as to reduce the number of times of mold wiping, reduce production costs, and prolong the service life. Effect

Active Publication Date: 2014-02-12
DONGGUAN PENGRUN CHEM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The stability of the product is poor, the storage period is short, and there are certain difficulties in transportation and management;
[0004] 2. The product contains organosilicon compounds, and it is difficult to clean the processed parts, which affects the surface treatment of the parts in the subsequent process;
[0005] 3. The price of the product is high. Since organosilicon compounds are the main raw materials, organosilicon is neither soluble in water nor oil. It takes a lot of expensive emulsifiers to prepare a stable emulsion, resulting in higher product costs and unfavorable product quality. promotional use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0041] 1) In this implementation case, the mass percentages of the following components are taken as:

[0042] Saturated polyol 16%

[0043] Polyisobutylene 6%

[0044] Sorbitan Stearate 5%

[0045] Alkyl alcohol polyoxyethylene ether 4%

[0046] Alkylphenol Ethoxylate 7%

[0047] Triethanolamine 8%

[0048] C11~C14 dibasic acid 6%

[0049] Water-soluble special corrosion inhibitor for magnesium alloy 3%

[0050] Diethylene glycol 2%

[0051] Deionized demineralized water 43%

[0052] 2) Preparation steps:

[0053] In the blending tank A, add saturated polyol ester and polyisobutylene according to the amount, raise the temperature to 100°C under stirring, keep the temperature constant for 20 minutes until the material is evenly stirred, and stop heating;

[0054] In the blending tank B, add deionized water, diethylene glycol, magnesium alloy water-soluble special corrosion inhibitor, C11-C14 dibasic acid, triethanolamine according to the amount, and stir at room tempe...

example 2

[0057] 1) In this implementation case, the mass percentages of the following components are taken as:

[0058] Trimethylolpropane complex ester 15%

[0059] Ethylene propylene copolymer 7%

[0060] Alkyl alcohol polyoxyethylene ether 4%

[0061] Alkylphenol Ethoxylate 6%

[0062] Polyethylene Glycol Oleate 5%

[0063] Triethanolamine 6%

[0064]Sebacic acid 4%

[0065] Water-soluble special corrosion inhibitor for magnesium alloy 3%

[0066] Diethylene glycol 4%

[0067] Deionized demineralized water 46%

[0068] 2) Preparation steps:

[0069] In the blending tank A, add trimethylolpropane compound ester and ethylene-propylene copolymer according to the amount, raise the temperature to 100°C under stirring, keep the temperature constant for 30 minutes until the material is evenly stirred, and stop heating;

[0070] In the blending tank B, add deionized water, diethylene glycol, magnesium alloy water-soluble special corrosion inhibitor, decanedicarbon, triethanolamine ...

example 3

[0073] 1) In this implementation case, the mass percentages of the following components are taken as:

[0074] Pentaerythritol complex ester 13%

[0075] Polyacrylate 6%

[0076] Alkyl alcohol polyoxyethylene ether 5%

[0077] Alkylphenol Ethoxylate 7%

[0078] Polyethylene glycol laurate 8%

[0079] Triisopropanolamine 8%

[0080] Sebacic acid 5%

[0081] Water-soluble corrosion inhibitor for magnesium alloy 5%

[0082] Glycerol 5%

[0083] Deionized demineralized water 38%

[0084] 2) Preparation process

[0085] In the blending tank A, add pentaerythritol complex ester and polyacrylate according to the amount, heat up to 100 ℃ under stirring, keep the temperature for 30 minutes until the material is evenly stirred, and stop heating;

[0086] In the blending tank B, add deionized water, glycerol, magnesium alloy water-soluble special corrosion inhibitor, sebacic acid, triisopropanolamine according to the amount, and stir at room temperature for 30 minutes until the ...

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PUM

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Abstract

The invention discloses a non-silicone magnesium alloy pressure casting mould release agent which comprises the following components in percentage by weight: 10%-20% of polyol ester, trimethylolpropane complex ester or pentaerythritol complex ester, 1%-8% of polyacrylate, polyisobutene or ethylene-propylene copolymer, 5%-20% of sorbitan monooleate, alkyl alcohol polyoxyethylene ether, polyoxyl oleate or polyethylene glycol dilaurate,6-15% of triethanolamine, triisopropanolamine, decanedioic acid or C11-C14 binary acid, 1%-5% of magnesium alloy dedicated water-soluble corrosion inhibitor, 1%-5% of ethylene glycol, diglycol or glycerol, and the balance of deionized water. According to the non-silicone magnesium alloy pressure casting mould release agent, no organic silicon compound is contained, the production cost is reduced, the product is long in storage period and convenient to transport; no ash is in the raw materials of the product, so that no residue and bright surface of the processed part are ensured; the product is stored without being added with antiseptics, so that the product is safe in use and environment-friendly; compared with a similar product, the product effectively reduces the mould abrasion times and prolongs the service life of a mould.

Description

technical field [0001] The invention relates to a mold release agent, in particular to a mold release agent used for magnesium alloy die-casting without organosilicon compounds and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronics industry and automobile manufacturing industry, many parts made of magnesium alloy materials are widely used in the electronics and automobile industries, among which magnesium alloy die-casting parts are more widely used. The heat capacity of the alloy is smaller, the solidification is faster, and it needs to be well formed in a short cooling time, so the magnesium alloy die-casting molding has higher requirements on the release agent; the magnesium alloy die-casting release agent currently on the market generally contains organic compounds. Emulsion of silicon compounds, such as Chinese patent application number: 201010239348.8, discloses an environmentally friendly magnesiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 林世平
Owner DONGGUAN PENGRUN CHEM PROD
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